Preliminary informationItem no. 10403205, Revision 09 5 ( 40 )1 Preliminary informationThe high frequency spindle (HF spindle) is a high quality precision tool forhigh speed machining.1.1 Purpose of the manualThe manual is an important component of the HF spindle.Ü Store the manual carefully.Ü Make the manual available to all persons who work with the HF spindle.Ü Read the documentation supplied in full.Ü Before carrying out any work, read the corresponding section of the man-ual carefully again.1.2 Explanation of symbols usedTo enable quick classification of information, this manual uses visual aids inthe form of symbols and text markings.Notes are marked with a signal word and a colored box:DANGERDangerous situation!Results in serious injury or death.u Measure to avert the danger.WARNINGDangerous situation!May result in serious injury or death.u Measure to avert the danger.CAUTIONDangerous situation!May result in minor to moderate injury.u Measure to avert the danger.NoteMay result in material damage. This warning symbol is not a warning for per-sonal injury.TipTips indicate useful information for users.